Sears 917.25559 Lawn Mower User Manual


 
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CUSTO
RESPONSi
TRACTOR
Always observe safety rules when performing any main-
tenance.
BRAKE OPERATION
If unit requires more than six (6) feet stopping distance at
high speed in highest gear, than brake must be adjusted.
(See "TO ADJUST BRAKE" in Service and Adjustments
section of this manual).
TIRES
o Maintain proper air pressure in all tires (See "PROD-
UCT SPECIFICATIONS" on page 3 of this manual),
. Keep tires free of gasoline, oil, or insect control chemi-
cals which can harm rubber.
- Avoid stumps, stones, deep ruts, sharp objects and
other hazards that may cause tire damage.
BLADE CARE
For best results mower blades must be kept sharp. The
blades can be sharpened with a file or on a grinding wheel.
We suggest they be sharpened or replaced after every 25
hours of mowing, Check blades more often if mowing in
sandy conditions.
Do not attempt to sharpen blades while they are on the
mower.
Replace bent or damaged blades.
BLADE REMOVAL (See Fig. 10)
, Raise mower to highest position to allow access to
blades.
Remove hex bolt, lock washer and flat washer securing
blade.
. Install new or resharpened blade with trailing edge up
towards deck as shown.
Reassemble hex bolt, lock washer and flat washer in
exact order as shown.
Tighten bolt securely (30-35 Ft. Lbs. torque).
IMPORTANT: BLADE BOLT iS GRADE 8 HEATTREATED.
MANDREL
(JACKSHAFT)
ASSEMBLY
FLAT WASHER
LOCK
TRAILING
EDGE UP
HEX BOLT (GRADE 8)*
*A GRADE 8 HEAT TREATED 80LT CAN 8E
IDENTIFIED BY SIX LINES ON THE BOLT HEAD.
FiG. 10
TO SHARPEN BLADE (See Fig. 11)
Care should be taken to keep the blade balanced. An
unbalanced blade will cause excessive vibration and even-
tual damage to mower and engine,
L ES
o The btade can be sharpened with a file or on a grindin1?
wheel. Do not attempt to sharpen while on the mower.
- To check blade balance, you wili need a 5/8" diamete__
steel bolt, pin, or a cone balancer. (When using a cone
balancer, follow the instructions supplied with bal
anoer).
Slide blade on to an unth readed portion of the steel boit
or pin and hold the bolt or pin parallel with the ground,
If blade is balanced, it should remain in a horizontai
position, tf either end of the blade moves downward,
sharpen the heavy end until the blade is balanced.
NOTE: Do not use a nail for balancing blade, The lobes of
the center hole may appear to be centered, but are not.
//
CENTER HOLE /
!5
FiG, 11
BATTERY (See Fig, 12)
Your unit has a battery charging system which is sufficient
for normal use. However, periodic charging of the battery
with an automotive charger will extend it's life.
o Acid solution level in each battery cell should be ever_
with bottoms of vent wetls. Add only distilled or iron free
water if necessary. Do not overfill.
BATTERY
CELL ACID
LEVEL
_J
FIG. t2
o Keep battery and terminals clean.
, Keep battery bolts tight.
o Keep vent caps tight and small vent holes in caps open°
o Recharge at 6 amperes for 1 hour.
TO CLEAN BATTERY AND TERMINALS -
Corrosion and dirt on the battery and terminals can cause
the battery to "leak" power.
o Remove terminal guard.
o Disconnect BLACK battery cable first then RED bat.
tery cable and remove battery from tractor.
o Wash battery with solution of four tablespoons ol
baking soda to one gallon of water. Be careful not tOge_
the soda solution into the celts.
o Rinse the battery with plain water and dry.
Clean terminals and battery cable ends with wire brush
until bright.
o Coat terminals with grease or petroleum jelly.
o Reinstall battery (See "INSTALL BATTERY" in As_
sembly section of this manual).